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Expanding mandrels are the ideal solution to many workholding problems. By holding parts on most of the datum bore (or outside diameter in the case of a collet chuck) the clamping forces are evenly distributed, reducing distortions during part manufacture.
Mandrels also provide a superior method of holding parts which are high volume, have short cycle times or require the highest levels of concentricity.
Craftsman manufacture expanding mandrels tailored to your exact specifications. Many different mounting styles are available, including: spindle nose, between centres, Morse taper and faceplate. Different actuation methods can be used, such as drawbar, cantilever nut and front nut.
Every expanding mandrel or collet chuck supplied by Craftsman can have the following features:
Single taper sleeves
Positive clamping and release
High levels of concentricity – to 0.005 T.I.R
Controlled datums
Sleeve interchangeability
Generous expansion capacities
All of the above permit quick and secure clamping creating versatility and ease of use. |
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Locknut Options:
Heavy Duty Bearing Style – KMER
Order Example: HSK63A-KMER32-080
Heavy Duty Bearing Style Thro’ Coolan
to accept Sealing Disc’s – KCER
Order Example: HSK63A-KCER32-080
Note: Gauge lengths will increase
when using the above styles
High Speed Bearing Style – VER
Flush Fitting
Order Example: HSK63A-VER32-070
Dynamically balanced –
HSK63A-ER32-080-G 2.5
Locknuts and Sealing Disc’s
See page 136
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| Keyless drill chucks in different types and qualities, Drilling chucks, CNC drill chucks, Key chucks, Multi drill chucks, Key Type Chucks, Self-Tighteninghucks, Keyless chucks for standard to medium type drills, morse taper arbors, threaded Arbors, straight shank arbors |
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SuperaC chucks for
precision machining
• TIR within 5 microns at 4 times the
cutting tool diameter
• Improved vibration dampening by
using a patented silicone compound
as the pressuring medium
• Up to 800Nm transmittable torque,
depending on the diameter
• Improved surface finish of the
workpiece
• Higher workpiece accuracy
• Up to 50% longer tool life
• Increased productivity
• Patented, leak-proof clamping
system
• Repeatability of 3 microns TIR over
50,000 cycles
• Available on all popular taper
shanks, including HSK
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Axial Tool length adjustment up to 10 mm via a screw in the center.
Optional "QUICK-SET" Tool length adjustment up to 10 mm stroke allows for tool length adjustment with cutting tool and retention knob assembled.
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Nexen's line of rugged safety chucks provide roll shaft support and torque transmission at a low cost. The maintenance-free design ensures optimal performance throughout the life of each safety chuck. Nexen's units safe-guard your equipment by securing the roll shaft in place during any wind or unwind operation. The safety chucks will only open with the socket in the upright position.
Features include:
Redundant safety mechanisms securely lock shaft in place
Long, maintenance-free life
Manual unlock for most models
Free-turning precision ball bearings
Finger guards on all models
Shaft extension with keyway
Foot or flange mounting
Metric size sockets available upon request
Available in ready-to-assembly brake packages
Ideal for the following industries:
Converting
Printing
Rubber
Film
Foil
Paper
Plastics
Textiles
Rope/cable/wire
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No influence on setting length if the pressure of coaling liquid is equal to or less than 70 bar.
Most of the torque caused by the threading will be taken up by the square in the bottom. The hydraulic will take up the axial force.
For smaller threads than M16 you must use reducing sleeves and reducing adapters for the squares.
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| Self-centering chuck having 3+3 jaws, simple guide, cast iron body, manual command and flange connection. |
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WEDM. Chuck adapters
3R-602.10
Pneumatic chuck for Macro holder. Horizontal mounting on the machine table for manual or automatic changing.
Supplied with protective cover.
3R-602.12
Pneumatic MacroTwin chuck. Horizontal mounting on the machine table for manual or automatic pallet changing, Macro or MacroTwin, with workpieces up to 25 kg. Supplied with two protective covers.
NOTE: On automatic changing in WorkPal - only MacroTwin
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WEDM. Chuck adapters
3R-402.1
Manual chuck, MacroJunior
Chcuk for MacroJunior holder. Can be mounted on 3R-237.2, 3R-292.66HP, 3R-294, the 3Ruler system, or on Macro element 54x54.
WEDM. Chuck adapters
3R-406.9
Manual chuck adapter
For horizontal mounting of MacroJunior holders in the Macro system. Screw locking.
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The floating chuck is a tool holder which gives tool self-alignment due to radial tolerance and angular correction. It is used for accurate grinding such as boring to close limits.
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- Selftightening feature automatically increases gripping power.
- Extremely rigid construction more superior than traditional design and prevent Drill Chucks from falling out.
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| Innovative method of clamping round work pieces on turning machines. The short clamping depth possible by form-closing clamping reduces raw material and minimizes clamping forces. This results in minimal deformations. Ideal for round pieces which are produced on turning machines or on mill-turn machines with high concentricity and repeatability. |
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For ranges of ultra tightening short, possibility of car tightening. They tighten concentrically with precision on all their periphery of the fragile ranges of centering. Very adapted to the parts low thickness.
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Concepts using of the elastic discs of recovery to produce chucks of recovery inter or exter. Modularity, precision and great expansion.
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- flange opening is at top central position for easy operator
access, and to avoid the disassembly of the opening button
in the DX or SX safety chucks;
- a safety button first needs to be pushed in before the
flange will open. Designing the button to be pushed
eliminates potential accidental opening by centrifugal force.
- components are finished to a high quality, with the safety
flange being dynamically balanced and chrome plated as
standard.
- the inserts are replaceable and designed in a variety of
shapes and sizes such as alveolar, square, round-square.
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